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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    package org.apache.commons.net.imap;<a name="line.18"></a>
<FONT color="green">019</FONT>    <a name="line.19"></a>
<FONT color="green">020</FONT>    import java.io.BufferedWriter;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.io.InputStreamReader;<a name="line.21"></a>
<FONT color="green">022</FONT>    import java.io.IOException;<a name="line.22"></a>
<FONT color="green">023</FONT>    import java.io.OutputStreamWriter;<a name="line.23"></a>
<FONT color="green">024</FONT>    <a name="line.24"></a>
<FONT color="green">025</FONT>    import javax.net.ssl.KeyManager;<a name="line.25"></a>
<FONT color="green">026</FONT>    import javax.net.ssl.SSLContext;<a name="line.26"></a>
<FONT color="green">027</FONT>    import javax.net.ssl.SSLException;<a name="line.27"></a>
<FONT color="green">028</FONT>    import javax.net.ssl.SSLSocket;<a name="line.28"></a>
<FONT color="green">029</FONT>    import javax.net.ssl.SSLSocketFactory;<a name="line.29"></a>
<FONT color="green">030</FONT>    import javax.net.ssl.TrustManager;<a name="line.30"></a>
<FONT color="green">031</FONT>    <a name="line.31"></a>
<FONT color="green">032</FONT>    import org.apache.commons.net.io.CRLFLineReader;<a name="line.32"></a>
<FONT color="green">033</FONT>    import org.apache.commons.net.util.SSLContextUtils;<a name="line.33"></a>
<FONT color="green">034</FONT>    <a name="line.34"></a>
<FONT color="green">035</FONT>    /**<a name="line.35"></a>
<FONT color="green">036</FONT>     * The IMAPSClient class provides SSL/TLS connection encryption to IMAPClient.<a name="line.36"></a>
<FONT color="green">037</FONT>     *  Copied from FTPSClient.java and modified to suit IMAP.<a name="line.37"></a>
<FONT color="green">038</FONT>     * If implicit mode is selected (NOT the default), SSL/TLS negotiation starts right<a name="line.38"></a>
<FONT color="green">039</FONT>     * after the connection has been established. In explicit mode (the default), SSL/TLS<a name="line.39"></a>
<FONT color="green">040</FONT>     * negotiation starts when the user calls execTLS() and the server accepts the command.<a name="line.40"></a>
<FONT color="green">041</FONT>     * Implicit usage:<a name="line.41"></a>
<FONT color="green">042</FONT>     *               IMAPSClient c = new IMAPSClient(true);<a name="line.42"></a>
<FONT color="green">043</FONT>     *               c.connect("127.0.0.1", 993);<a name="line.43"></a>
<FONT color="green">044</FONT>     * Explicit usage:<a name="line.44"></a>
<FONT color="green">045</FONT>     *               IMAPSClient c = new IMAPSClient();<a name="line.45"></a>
<FONT color="green">046</FONT>     *               c.connect("127.0.0.1", 143);<a name="line.46"></a>
<FONT color="green">047</FONT>     *               if (c.execTLS()) { /rest of the commands here/ }<a name="line.47"></a>
<FONT color="green">048</FONT>     */<a name="line.48"></a>
<FONT color="green">049</FONT>    public class IMAPSClient extends IMAPClient<a name="line.49"></a>
<FONT color="green">050</FONT>    {<a name="line.50"></a>
<FONT color="green">051</FONT>        /** The default IMAP over SSL port. */<a name="line.51"></a>
<FONT color="green">052</FONT>        public static final int DEFAULT_IMAPS_PORT = 993;<a name="line.52"></a>
<FONT color="green">053</FONT>    <a name="line.53"></a>
<FONT color="green">054</FONT>        /** Default secure socket protocol name. */<a name="line.54"></a>
<FONT color="green">055</FONT>        public static final String DEFAULT_PROTOCOL = "TLS";<a name="line.55"></a>
<FONT color="green">056</FONT>    <a name="line.56"></a>
<FONT color="green">057</FONT>        /** The security mode. True - Implicit Mode / False - Explicit Mode. */<a name="line.57"></a>
<FONT color="green">058</FONT>        private final boolean isImplicit;<a name="line.58"></a>
<FONT color="green">059</FONT>        /** The secure socket protocol to be used, like SSL/TLS. */<a name="line.59"></a>
<FONT color="green">060</FONT>        private final String protocol;<a name="line.60"></a>
<FONT color="green">061</FONT>        /** The context object. */<a name="line.61"></a>
<FONT color="green">062</FONT>        private SSLContext context = null;<a name="line.62"></a>
<FONT color="green">063</FONT>        /** The cipher suites. SSLSockets have a default set of these anyway,<a name="line.63"></a>
<FONT color="green">064</FONT>            so no initialization required. */<a name="line.64"></a>
<FONT color="green">065</FONT>        private String[] suites = null;<a name="line.65"></a>
<FONT color="green">066</FONT>        /** The protocol versions. */<a name="line.66"></a>
<FONT color="green">067</FONT>        private String[] protocols = //null;<a name="line.67"></a>
<FONT color="green">068</FONT>            null;//{"SSLv2", "SSLv3", "TLSv1", "TLSv1.1", "SSLv2Hello"};<a name="line.68"></a>
<FONT color="green">069</FONT>    <a name="line.69"></a>
<FONT color="green">070</FONT>        /** The IMAPS {@link TrustManager} implementation, default null. */<a name="line.70"></a>
<FONT color="green">071</FONT>        private TrustManager trustManager = null;<a name="line.71"></a>
<FONT color="green">072</FONT>    <a name="line.72"></a>
<FONT color="green">073</FONT>        /** The {@link KeyManager}, default null. */<a name="line.73"></a>
<FONT color="green">074</FONT>        private KeyManager keyManager = null;<a name="line.74"></a>
<FONT color="green">075</FONT>    <a name="line.75"></a>
<FONT color="green">076</FONT>        /**<a name="line.76"></a>
<FONT color="green">077</FONT>         * Constructor for IMAPSClient.<a name="line.77"></a>
<FONT color="green">078</FONT>         * Sets security mode to explicit (isImplicit = false).<a name="line.78"></a>
<FONT color="green">079</FONT>         */<a name="line.79"></a>
<FONT color="green">080</FONT>        public IMAPSClient()<a name="line.80"></a>
<FONT color="green">081</FONT>        {<a name="line.81"></a>
<FONT color="green">082</FONT>            this(DEFAULT_PROTOCOL, false);<a name="line.82"></a>
<FONT color="green">083</FONT>        }<a name="line.83"></a>
<FONT color="green">084</FONT>    <a name="line.84"></a>
<FONT color="green">085</FONT>        /**<a name="line.85"></a>
<FONT color="green">086</FONT>         * Constructor for IMAPSClient.<a name="line.86"></a>
<FONT color="green">087</FONT>         * @param implicit The security mode (Implicit/Explicit).<a name="line.87"></a>
<FONT color="green">088</FONT>         */<a name="line.88"></a>
<FONT color="green">089</FONT>        public IMAPSClient(boolean implicit)<a name="line.89"></a>
<FONT color="green">090</FONT>        {<a name="line.90"></a>
<FONT color="green">091</FONT>            this(DEFAULT_PROTOCOL, implicit);<a name="line.91"></a>
<FONT color="green">092</FONT>        }<a name="line.92"></a>
<FONT color="green">093</FONT>    <a name="line.93"></a>
<FONT color="green">094</FONT>        /**<a name="line.94"></a>
<FONT color="green">095</FONT>         * Constructor for IMAPSClient.<a name="line.95"></a>
<FONT color="green">096</FONT>         * @param proto the protocol.<a name="line.96"></a>
<FONT color="green">097</FONT>         */<a name="line.97"></a>
<FONT color="green">098</FONT>        public IMAPSClient(String proto)<a name="line.98"></a>
<FONT color="green">099</FONT>        {<a name="line.99"></a>
<FONT color="green">100</FONT>            this(proto, false);<a name="line.100"></a>
<FONT color="green">101</FONT>        }<a name="line.101"></a>
<FONT color="green">102</FONT>    <a name="line.102"></a>
<FONT color="green">103</FONT>        /**<a name="line.103"></a>
<FONT color="green">104</FONT>         * Constructor for IMAPSClient.<a name="line.104"></a>
<FONT color="green">105</FONT>         * @param proto the protocol.<a name="line.105"></a>
<FONT color="green">106</FONT>         * @param implicit The security mode(Implicit/Explicit).<a name="line.106"></a>
<FONT color="green">107</FONT>         */<a name="line.107"></a>
<FONT color="green">108</FONT>        public IMAPSClient(String proto, boolean implicit)<a name="line.108"></a>
<FONT color="green">109</FONT>        {<a name="line.109"></a>
<FONT color="green">110</FONT>            this(proto, implicit, null);<a name="line.110"></a>
<FONT color="green">111</FONT>        }<a name="line.111"></a>
<FONT color="green">112</FONT>    <a name="line.112"></a>
<FONT color="green">113</FONT>        /**<a name="line.113"></a>
<FONT color="green">114</FONT>         * Constructor for IMAPSClient.<a name="line.114"></a>
<FONT color="green">115</FONT>         * @param proto the protocol.<a name="line.115"></a>
<FONT color="green">116</FONT>         * @param implicit The security mode(Implicit/Explicit).<a name="line.116"></a>
<FONT color="green">117</FONT>         */<a name="line.117"></a>
<FONT color="green">118</FONT>        public IMAPSClient(String proto, boolean implicit, SSLContext ctx)<a name="line.118"></a>
<FONT color="green">119</FONT>        {<a name="line.119"></a>
<FONT color="green">120</FONT>            super();<a name="line.120"></a>
<FONT color="green">121</FONT>            setDefaultPort(DEFAULT_IMAPS_PORT);<a name="line.121"></a>
<FONT color="green">122</FONT>            protocol = proto;<a name="line.122"></a>
<FONT color="green">123</FONT>            isImplicit = implicit;<a name="line.123"></a>
<FONT color="green">124</FONT>            context = ctx;<a name="line.124"></a>
<FONT color="green">125</FONT>        }<a name="line.125"></a>
<FONT color="green">126</FONT>    <a name="line.126"></a>
<FONT color="green">127</FONT>        /**<a name="line.127"></a>
<FONT color="green">128</FONT>         * Constructor for IMAPSClient.<a name="line.128"></a>
<FONT color="green">129</FONT>         * @param implicit The security mode(Implicit/Explicit).<a name="line.129"></a>
<FONT color="green">130</FONT>         * @param ctx A pre-configured SSL Context.<a name="line.130"></a>
<FONT color="green">131</FONT>         */<a name="line.131"></a>
<FONT color="green">132</FONT>        public IMAPSClient(boolean implicit, SSLContext ctx)<a name="line.132"></a>
<FONT color="green">133</FONT>        {<a name="line.133"></a>
<FONT color="green">134</FONT>            this(DEFAULT_PROTOCOL, implicit, ctx);<a name="line.134"></a>
<FONT color="green">135</FONT>        }<a name="line.135"></a>
<FONT color="green">136</FONT>    <a name="line.136"></a>
<FONT color="green">137</FONT>        /**<a name="line.137"></a>
<FONT color="green">138</FONT>         * Constructor for IMAPSClient.<a name="line.138"></a>
<FONT color="green">139</FONT>         * @param context A pre-configured SSL Context.<a name="line.139"></a>
<FONT color="green">140</FONT>         */<a name="line.140"></a>
<FONT color="green">141</FONT>        public IMAPSClient(SSLContext context)<a name="line.141"></a>
<FONT color="green">142</FONT>        {<a name="line.142"></a>
<FONT color="green">143</FONT>            this(false, context);<a name="line.143"></a>
<FONT color="green">144</FONT>        }<a name="line.144"></a>
<FONT color="green">145</FONT>    <a name="line.145"></a>
<FONT color="green">146</FONT>        /**<a name="line.146"></a>
<FONT color="green">147</FONT>         * Because there are so many connect() methods,<a name="line.147"></a>
<FONT color="green">148</FONT>         * the _connectAction_() method is provided as a means of performing<a name="line.148"></a>
<FONT color="green">149</FONT>         * some action immediately after establishing a connection,<a name="line.149"></a>
<FONT color="green">150</FONT>         * rather than reimplementing all of the connect() methods.<a name="line.150"></a>
<FONT color="green">151</FONT>         * @throws IOException If it is thrown by _connectAction_().<a name="line.151"></a>
<FONT color="green">152</FONT>         * @see org.apache.commons.net.SocketClient#_connectAction_()<a name="line.152"></a>
<FONT color="green">153</FONT>         */<a name="line.153"></a>
<FONT color="green">154</FONT>        @Override<a name="line.154"></a>
<FONT color="green">155</FONT>        protected void _connectAction_() throws IOException<a name="line.155"></a>
<FONT color="green">156</FONT>        {<a name="line.156"></a>
<FONT color="green">157</FONT>            // Implicit mode.<a name="line.157"></a>
<FONT color="green">158</FONT>            if (isImplicit) {<a name="line.158"></a>
<FONT color="green">159</FONT>                performSSLNegotiation();<a name="line.159"></a>
<FONT color="green">160</FONT>            }<a name="line.160"></a>
<FONT color="green">161</FONT>            super._connectAction_();<a name="line.161"></a>
<FONT color="green">162</FONT>            // Explicit mode - don't do anything. The user calls execTLS()<a name="line.162"></a>
<FONT color="green">163</FONT>        }<a name="line.163"></a>
<FONT color="green">164</FONT>    <a name="line.164"></a>
<FONT color="green">165</FONT>        /**<a name="line.165"></a>
<FONT color="green">166</FONT>         * Performs a lazy init of the SSL context.<a name="line.166"></a>
<FONT color="green">167</FONT>         * @throws IOException When could not initialize the SSL context.<a name="line.167"></a>
<FONT color="green">168</FONT>         */<a name="line.168"></a>
<FONT color="green">169</FONT>        private void initSSLContext() throws IOException<a name="line.169"></a>
<FONT color="green">170</FONT>        {<a name="line.170"></a>
<FONT color="green">171</FONT>            if (context == null)<a name="line.171"></a>
<FONT color="green">172</FONT>            {<a name="line.172"></a>
<FONT color="green">173</FONT>                context = SSLContextUtils.createSSLContext(protocol, getKeyManager(), getTrustManager());<a name="line.173"></a>
<FONT color="green">174</FONT>            }<a name="line.174"></a>
<FONT color="green">175</FONT>        }<a name="line.175"></a>
<FONT color="green">176</FONT>    <a name="line.176"></a>
<FONT color="green">177</FONT>        /**<a name="line.177"></a>
<FONT color="green">178</FONT>         * SSL/TLS negotiation. Acquires an SSL socket of a<a name="line.178"></a>
<FONT color="green">179</FONT>         * connection and carries out handshake processing.<a name="line.179"></a>
<FONT color="green">180</FONT>         * @throws IOException If server negotiation fails.<a name="line.180"></a>
<FONT color="green">181</FONT>         */<a name="line.181"></a>
<FONT color="green">182</FONT>        private void performSSLNegotiation() throws IOException<a name="line.182"></a>
<FONT color="green">183</FONT>        {<a name="line.183"></a>
<FONT color="green">184</FONT>            initSSLContext();<a name="line.184"></a>
<FONT color="green">185</FONT>    <a name="line.185"></a>
<FONT color="green">186</FONT>            SSLSocketFactory ssf = context.getSocketFactory();<a name="line.186"></a>
<FONT color="green">187</FONT>            String ip = getRemoteAddress().getHostAddress();<a name="line.187"></a>
<FONT color="green">188</FONT>            int port = getRemotePort();<a name="line.188"></a>
<FONT color="green">189</FONT>            SSLSocket socket =<a name="line.189"></a>
<FONT color="green">190</FONT>                (SSLSocket) ssf.createSocket(_socket_, ip, port, true);<a name="line.190"></a>
<FONT color="green">191</FONT>            socket.setEnableSessionCreation(true);<a name="line.191"></a>
<FONT color="green">192</FONT>            socket.setUseClientMode(true);<a name="line.192"></a>
<FONT color="green">193</FONT>    <a name="line.193"></a>
<FONT color="green">194</FONT>            if (protocols != null) {<a name="line.194"></a>
<FONT color="green">195</FONT>                socket.setEnabledProtocols(protocols);<a name="line.195"></a>
<FONT color="green">196</FONT>            }<a name="line.196"></a>
<FONT color="green">197</FONT>            if (suites != null) {<a name="line.197"></a>
<FONT color="green">198</FONT>                socket.setEnabledCipherSuites(suites);<a name="line.198"></a>
<FONT color="green">199</FONT>            }<a name="line.199"></a>
<FONT color="green">200</FONT>            socket.startHandshake();<a name="line.200"></a>
<FONT color="green">201</FONT>    <a name="line.201"></a>
<FONT color="green">202</FONT>            _socket_ = socket;<a name="line.202"></a>
<FONT color="green">203</FONT>            _input_ = socket.getInputStream();<a name="line.203"></a>
<FONT color="green">204</FONT>            _output_ = socket.getOutputStream();<a name="line.204"></a>
<FONT color="green">205</FONT>            _reader =<a name="line.205"></a>
<FONT color="green">206</FONT>              new CRLFLineReader(new InputStreamReader(_input_,<a name="line.206"></a>
<FONT color="green">207</FONT>                                                       __DEFAULT_ENCODING));<a name="line.207"></a>
<FONT color="green">208</FONT>            __writer =<a name="line.208"></a>
<FONT color="green">209</FONT>              new BufferedWriter(new OutputStreamWriter(_output_,<a name="line.209"></a>
<FONT color="green">210</FONT>                                                        __DEFAULT_ENCODING));<a name="line.210"></a>
<FONT color="green">211</FONT>        }<a name="line.211"></a>
<FONT color="green">212</FONT>    <a name="line.212"></a>
<FONT color="green">213</FONT>        /**<a name="line.213"></a>
<FONT color="green">214</FONT>         * Get the {@link KeyManager} instance.<a name="line.214"></a>
<FONT color="green">215</FONT>         * @return The current {@link KeyManager} instance.<a name="line.215"></a>
<FONT color="green">216</FONT>         */<a name="line.216"></a>
<FONT color="green">217</FONT>        private KeyManager getKeyManager()<a name="line.217"></a>
<FONT color="green">218</FONT>        {<a name="line.218"></a>
<FONT color="green">219</FONT>            return keyManager;<a name="line.219"></a>
<FONT color="green">220</FONT>        }<a name="line.220"></a>
<FONT color="green">221</FONT>    <a name="line.221"></a>
<FONT color="green">222</FONT>        /**<a name="line.222"></a>
<FONT color="green">223</FONT>         * Set a {@link KeyManager} to use.<a name="line.223"></a>
<FONT color="green">224</FONT>         * @param newKeyManager The KeyManager implementation to set.<a name="line.224"></a>
<FONT color="green">225</FONT>         * @see org.apache.commons.net.util.KeyManagerUtils<a name="line.225"></a>
<FONT color="green">226</FONT>         */<a name="line.226"></a>
<FONT color="green">227</FONT>        public void setKeyManager(KeyManager newKeyManager)<a name="line.227"></a>
<FONT color="green">228</FONT>        {<a name="line.228"></a>
<FONT color="green">229</FONT>            keyManager = newKeyManager;<a name="line.229"></a>
<FONT color="green">230</FONT>        }<a name="line.230"></a>
<FONT color="green">231</FONT>    <a name="line.231"></a>
<FONT color="green">232</FONT>        /**<a name="line.232"></a>
<FONT color="green">233</FONT>         * Controls which particular cipher suites are enabled for use on this<a name="line.233"></a>
<FONT color="green">234</FONT>         * connection. Called before server negotiation.<a name="line.234"></a>
<FONT color="green">235</FONT>         * @param cipherSuites The cipher suites.<a name="line.235"></a>
<FONT color="green">236</FONT>         */<a name="line.236"></a>
<FONT color="green">237</FONT>        public void setEnabledCipherSuites(String[] cipherSuites)<a name="line.237"></a>
<FONT color="green">238</FONT>        {<a name="line.238"></a>
<FONT color="green">239</FONT>            suites = new String[cipherSuites.length];<a name="line.239"></a>
<FONT color="green">240</FONT>            System.arraycopy(cipherSuites, 0, suites, 0, cipherSuites.length);<a name="line.240"></a>
<FONT color="green">241</FONT>        }<a name="line.241"></a>
<FONT color="green">242</FONT>    <a name="line.242"></a>
<FONT color="green">243</FONT>        /**<a name="line.243"></a>
<FONT color="green">244</FONT>         * Returns the names of the cipher suites which could be enabled<a name="line.244"></a>
<FONT color="green">245</FONT>         * for use on this connection.<a name="line.245"></a>
<FONT color="green">246</FONT>         * When the underlying {@link java.net.Socket Socket} is not an {@link SSLSocket} instance, returns null.<a name="line.246"></a>
<FONT color="green">247</FONT>         * @return An array of cipher suite names, or &lt;code&gt;null&lt;/code&gt;.<a name="line.247"></a>
<FONT color="green">248</FONT>         */<a name="line.248"></a>
<FONT color="green">249</FONT>        public String[] getEnabledCipherSuites()<a name="line.249"></a>
<FONT color="green">250</FONT>        {<a name="line.250"></a>
<FONT color="green">251</FONT>            if (_socket_ instanceof SSLSocket)<a name="line.251"></a>
<FONT color="green">252</FONT>            {<a name="line.252"></a>
<FONT color="green">253</FONT>                return ((SSLSocket)_socket_).getEnabledCipherSuites();<a name="line.253"></a>
<FONT color="green">254</FONT>            }<a name="line.254"></a>
<FONT color="green">255</FONT>            return null;<a name="line.255"></a>
<FONT color="green">256</FONT>        }<a name="line.256"></a>
<FONT color="green">257</FONT>    <a name="line.257"></a>
<FONT color="green">258</FONT>        /**<a name="line.258"></a>
<FONT color="green">259</FONT>         * Controls which particular protocol versions are enabled for use on this<a name="line.259"></a>
<FONT color="green">260</FONT>         * connection. I perform setting before a server negotiation.<a name="line.260"></a>
<FONT color="green">261</FONT>         * @param protocolVersions The protocol versions.<a name="line.261"></a>
<FONT color="green">262</FONT>         */<a name="line.262"></a>
<FONT color="green">263</FONT>        public void setEnabledProtocols(String[] protocolVersions)<a name="line.263"></a>
<FONT color="green">264</FONT>        {<a name="line.264"></a>
<FONT color="green">265</FONT>            protocols = new String[protocolVersions.length];<a name="line.265"></a>
<FONT color="green">266</FONT>            System.arraycopy(protocolVersions, 0, protocols, 0, protocolVersions.length);<a name="line.266"></a>
<FONT color="green">267</FONT>        }<a name="line.267"></a>
<FONT color="green">268</FONT>    <a name="line.268"></a>
<FONT color="green">269</FONT>        /**<a name="line.269"></a>
<FONT color="green">270</FONT>         * Returns the names of the protocol versions which are currently<a name="line.270"></a>
<FONT color="green">271</FONT>         * enabled for use on this connection.<a name="line.271"></a>
<FONT color="green">272</FONT>         * When the underlying {@link java.net.Socket Socket} is not an {@link SSLSocket} instance, returns null.<a name="line.272"></a>
<FONT color="green">273</FONT>         * @return An array of protocols, or &lt;code&gt;null&lt;/code&gt;.<a name="line.273"></a>
<FONT color="green">274</FONT>         */<a name="line.274"></a>
<FONT color="green">275</FONT>        public String[] getEnabledProtocols()<a name="line.275"></a>
<FONT color="green">276</FONT>        {<a name="line.276"></a>
<FONT color="green">277</FONT>            if (_socket_ instanceof SSLSocket)<a name="line.277"></a>
<FONT color="green">278</FONT>            {<a name="line.278"></a>
<FONT color="green">279</FONT>                return ((SSLSocket)_socket_).getEnabledProtocols();<a name="line.279"></a>
<FONT color="green">280</FONT>            }<a name="line.280"></a>
<FONT color="green">281</FONT>            return null;<a name="line.281"></a>
<FONT color="green">282</FONT>        }<a name="line.282"></a>
<FONT color="green">283</FONT>    <a name="line.283"></a>
<FONT color="green">284</FONT>        /**<a name="line.284"></a>
<FONT color="green">285</FONT>         * The TLS command execution.<a name="line.285"></a>
<FONT color="green">286</FONT>         * @throws SSLException If the server reply code is not positive.<a name="line.286"></a>
<FONT color="green">287</FONT>         * @throws IOException If an I/O error occurs while sending<a name="line.287"></a>
<FONT color="green">288</FONT>         * the command or performing the negotiation.<a name="line.288"></a>
<FONT color="green">289</FONT>         * @return TRUE if the command and negotiation succeeded.<a name="line.289"></a>
<FONT color="green">290</FONT>         */<a name="line.290"></a>
<FONT color="green">291</FONT>        public boolean execTLS() throws SSLException, IOException<a name="line.291"></a>
<FONT color="green">292</FONT>        {<a name="line.292"></a>
<FONT color="green">293</FONT>            if (sendCommand(IMAPCommand.getCommand(IMAPCommand.STARTTLS)) != IMAPReply.OK)<a name="line.293"></a>
<FONT color="green">294</FONT>            {<a name="line.294"></a>
<FONT color="green">295</FONT>                return false;<a name="line.295"></a>
<FONT color="green">296</FONT>                //throw new SSLException(getReplyString());<a name="line.296"></a>
<FONT color="green">297</FONT>            }<a name="line.297"></a>
<FONT color="green">298</FONT>            performSSLNegotiation();<a name="line.298"></a>
<FONT color="green">299</FONT>            return true;<a name="line.299"></a>
<FONT color="green">300</FONT>        }<a name="line.300"></a>
<FONT color="green">301</FONT>    <a name="line.301"></a>
<FONT color="green">302</FONT>        /**<a name="line.302"></a>
<FONT color="green">303</FONT>         * Get the currently configured {@link TrustManager}.<a name="line.303"></a>
<FONT color="green">304</FONT>         * @return A TrustManager instance.<a name="line.304"></a>
<FONT color="green">305</FONT>         */<a name="line.305"></a>
<FONT color="green">306</FONT>        public TrustManager getTrustManager()<a name="line.306"></a>
<FONT color="green">307</FONT>        {<a name="line.307"></a>
<FONT color="green">308</FONT>            return trustManager;<a name="line.308"></a>
<FONT color="green">309</FONT>        }<a name="line.309"></a>
<FONT color="green">310</FONT>    <a name="line.310"></a>
<FONT color="green">311</FONT>        /**<a name="line.311"></a>
<FONT color="green">312</FONT>         * Override the default {@link TrustManager} to use.<a name="line.312"></a>
<FONT color="green">313</FONT>         * @param newTrustManager The TrustManager implementation to set.<a name="line.313"></a>
<FONT color="green">314</FONT>         * @see org.apache.commons.net.util.TrustManagerUtils<a name="line.314"></a>
<FONT color="green">315</FONT>         */<a name="line.315"></a>
<FONT color="green">316</FONT>        public void setTrustManager(TrustManager newTrustManager)<a name="line.316"></a>
<FONT color="green">317</FONT>        {<a name="line.317"></a>
<FONT color="green">318</FONT>            trustManager = newTrustManager;<a name="line.318"></a>
<FONT color="green">319</FONT>        }<a name="line.319"></a>
<FONT color="green">320</FONT>    <a name="line.320"></a>
<FONT color="green">321</FONT>    }<a name="line.321"></a>
<FONT color="green">322</FONT>    /* kate: indent-width 4; replace-tabs on; */<a name="line.322"></a>




























































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